package com.example.tests;

import static org.junit.Assert.assertThat;
import static org.hamcrest.Matchers.*;

import java.util.Random;

import org.testng.annotations.Test;

import com.example.utils.SortedListOf;

public class GroupModificationTests extends TestBase {
	
    @Test(dataProvider = "randomValidGroupGenerator")	
	public void modifySomeGroup(GroupData group) {
		//save old state
    	SortedListOf<GroupData> oldList = app.getGroupHelper().getUiGroups();
        
        Random rnd = new Random();
        int index = rnd.nextInt(oldList.size()-1);
        
        // actions
        app.getGroupHelper().modifyGroup(index, group);
				
		//save new state
        SortedListOf<GroupData> newList = app.getGroupHelper().getUiGroups();
        
        // compare states     
        assertThat(newList, equalTo(oldList.without(index).withAdded(group)));
	}

}
